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AWS Lambda Function sample
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‎aws-lambda/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.fd</groupId>
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<artifactId>tryout-aws-lambda</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<java-version>1.8</java-version>
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<maven.compiler.source>1.8</maven.compiler.source>
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<maven.compiler.target>1.8</maven.compiler.target>
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<maven.plugins.maven-shade-plugin.version>2.4.3</maven.plugins.maven-shade-plugin.version>
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<maven.plugins.maven-compiler-plugin.version>3.6.1</maven.plugins.maven-compiler-plugin.version>
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<maven.plugins.maven-build-helper.version>3.0.0</maven.plugins.maven-build-helper.version>
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<aws-lambda-java-core.version>1.2.0</aws-lambda-java-core.version>
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<aws-lambda-java-log4j2.version>1.1.0</aws-lambda-java-log4j2.version>
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<lombok.version>1.18.4</lombok.version>
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<dagger.version>2.19</dagger.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.amazonaws</groupId>
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<artifactId>aws-lambda-java-core</artifactId>
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<version>${aws-lambda-java-core.version}</version>
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</dependency>
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<dependency>
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<groupId>com.amazonaws</groupId>
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<artifactId>aws-lambda-java-log4j2</artifactId>
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<version>${aws-lambda-java-log4j2.version}</version>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>${lombok.version}</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>com.google.dagger</groupId>
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<artifactId>dagger</artifactId>
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<version>${dagger.version}</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>${maven.plugins.maven-compiler-plugin.version}</version>
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<configuration>
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<annotationProcessorPaths>
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<path>
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<groupId>com.google.dagger</groupId>
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<artifactId>dagger-compiler</artifactId>
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<version>${dagger.version}</version>
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</path>
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<path>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>${lombok.version}</version>
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</path>
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</annotationProcessorPaths>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>build-helper-maven-plugin</artifactId>
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<version>${maven.plugins.maven-build-helper.version}</version>
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<executions>
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<execution>
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<phase>generate-sources</phase>
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<goals>
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<goal>add-source</goal>
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</goals>
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<configuration>
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<sources>
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<source>target/generated-sources/annotations</source>
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</sources>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎aws-lambda/src/main/java/com/fd/tryout/aws/lambda/MySampleHandler.java‎

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package com.fd.tryout.aws.lambda;
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import com.amazonaws.services.lambda.runtime.Context;
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import com.amazonaws.services.lambda.runtime.RequestHandler;
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import com.fd.tryout.aws.lambda.model.MyRequest;
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import com.fd.tryout.aws.lambda.model.MyResponse;
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import javax.inject.Inject;
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/**
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* @author fdanismaz
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* date: 11/11/18 4:58 PM
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*/
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public class MySampleHandler implements RequestHandler<MyRequest, MyResponse> {
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@Inject
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MyService myService;
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/**
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* Entry point
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* @param myRequest
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* @param context
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* @return
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*/
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@Override
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public MyResponse handleRequest(MyRequest myRequest, Context context) {
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return this.myService.execute(myRequest, context);
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}
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}

‎aws-lambda/src/main/java/com/fd/tryout/aws/lambda/MyService.java‎

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package com.fd.tryout.aws.lambda;
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import com.amazonaws.services.lambda.runtime.Context;
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import com.fd.tryout.aws.lambda.model.MyRequest;
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import com.fd.tryout.aws.lambda.model.MyResponse;
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import javax.inject.Inject;
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/**
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* @author fdanismaz
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* date: 11/11/18 5:13 PM
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*/
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public class MyService {
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@Inject
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public MyService() {
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}
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public MyResponse execute(MyRequest request, Context context) {
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String greetings = String.format("Hello %s %s", request.getName(), request.getSurname());
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return new MyResponse(greetings);
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}
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}

‎aws-lambda/src/main/java/com/fd/tryout/aws/lambda/model/MyRequest.java‎

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package com.fd.tryout.aws.lambda.model;
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import lombok.Data;
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/**
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* @author fdanismaz
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* date: 11/11/18 5:06 PM
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*/
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@Data
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public class MyRequest {
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private String name;
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private String surname;
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}

‎aws-lambda/src/main/java/com/fd/tryout/aws/lambda/model/MyResponse.java‎

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package com.fd.tryout.aws.lambda.model;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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/**
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* @author fdanismaz
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* date: 11/11/18 5:06 PM
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*/
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@Data
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@AllArgsConstructor
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public class MyResponse {
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private String greetings;
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}

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